Plays a role in the signal transduction pathways mediated by multiple Wnt genes (PubMed:26795562). Functions redundantly with other dishevelled family members throughout development (PubMed:19298786, PubMed:25344071, PubMed:26460008, PubMed:26795562). During embryonic and larval development, controls cell migration and/or cell fate specification of hypodermal cells, hypodermal seam cells, vulval precursor cells and, through distal tip cell migration, somatic gonad precursor cells (PubMed:16899238, PubMed:26795562). In early embryos, regulates the orientation of the mitotic spindle of blastomeres and specifically, along with dsh-2, is required for the correct mitotic spindle orientation of the ABar blastomere division plane (PubMed:16899238, PubMed:25344071). Controls the polarity and the asymmetric localization of downstream components of the wnt/beta-catenin asymmetry pathway, and in particular, controls the asymmetric localization of the wnt receptor lin-17/Frizzled in ectodermal blast B cells (PubMed:16631156, PubMed:17196955, PubMed:19298786, PubMed:26795562). May act redundantly with dsh-2 to regulate the expression and nuclear localization of the beta-catenin homolog wrm-2, but alone seems to be required for the polarity of wrm-2 during the asymmetric cell division of hypodermal seam cells (PubMed:26795562). Also, maintains the polarity and migration of QL neuroblasts in larvae (PubMed:16899238). During the embryonic development of touch receptor neurons, may act redundantly with dsh-1, downstream of wnt signaling ligands and the wnt receptor lin-17/Frizzled, to direct the growth of neurites of touch receptor neurons towards the anterior of the body of the worm and towards the PLM touch receptor neuron and other tail neurons (PubMed:26460008). May play a role in the guidance of posterior D-type motor neuron axons along the anteroposterior axis (PubMed:19259273). Mainly localized to the cell cortex, but localizes to the cytoplasm following dorsal intercalation during hypodermal morphogenesis (PubMed:16899238). Localizes in puncta in the cytoplasm during interphase prior to seam cell division (PubMed:26795562). Localizes in puncta in the cell cortex or cell membrane prior to and after asymmetric blast B cell division (PubMed:17196955). Expressed throughout embryonic and larval development (PubMed:16899238). Expressed in most embryonic cells during hypodermal morphogenesis, and in Z1 and Z4 distal tip precursor cells, in distal tips cells during gonadal migration and in the gonandal primordium, which become vulval precursor cells, during larval development (PubMed:16899238). Also expressed in hypodermal precursor cells P11 and P12 and their daughter cells P11.a, P11.p, P12.a and P12.p, and in the SDQL and PVM neurons which are derived from the QL neuroblast (PubMed:16899238). During larval development, expressed in blast B cells and its descendants, the QL cell and in cells in the nerve ring (PubMed:16631156). The DEP domain is required for cell membrane localization. Embryonic and larval cell fate, polarity, division and migration defects (PubMed:16899238, PubMed:17196955, PubMed:26795562). In several lineages of the developing gonad 42.6% of hermaphrodites do not have either one or both distal tip cells, which results in the absence of the corresponding gonad arm, and germline proliferation defects in the male germ line (PubMed:16899238). Defects in hypodermal morphogenesis including disorganized dorsal cell intercalation, eventually resulting in 2-fold stage arrest, and failed ventral enclosure in some worms (PubMed:16899238). Cell polarity and migration defects including mitotic spindle misalignment, particularly in the ABar blastomere which results in the posterior cells of the blastomere adopting an alternate more anterior position (PubMed:16899238). Defective QL neuroblast migration with 100% of descendants migrating towards the anterior rather than the posterior of larvae (PubMed:16899238). Disrupted asymmetric cell divisions of hypodermal seam cells with the mislocalization and reduced expression of a wnt/beta catenin pathway component sys-1 and its negative regulator apr-1, and wrm-1 in daughter seam cells (PubMed:26795562). Irregular symmetric localization of lin-17/Frizzled in ectodermal blast B cells (PubMed:17196955). Belongs to the DSH family.