Probable transcription factor (PubMed:20005870, PubMed:24885717). Involved in vulval organogenesis (PubMed:20005870, PubMed:24885717). During vulval development, may play a role in the regulation of cell cycle regulators such as cul-1 (PubMed:20005870). Positively modulates expression of homeobox protein lin-39, perhaps by binding to regulatory regions of the lin-39 gene, acting in the vulval lineage (PubMed:24885717). Plays a role in larval molting (PubMed:20005870). Expressed in neuronal cell bodies in the ventral cord and HSN neurons. Expressed in the lateral hypodermal (seam) cells and occasionally in the hyp7 hypodermal cell during the larval stages of development with increased expression during the molting phase between the L3 and L4 stages of larval development. Also expressed in the vulval precursor cell desecendents of P5.p, P6.p and P7.p cells. RNAi-mediated knockdown results in an egg-laying defect and vulval cell-lineage defects including failed division of vulval precursor cell descendents (PubMed:20005870). RNAi-mediated knockdown causes a decrease in expression of lin-39 at the larval L3 stage (PubMed:24885717). Knockdown in L1 stage larvae, in a lin-39 mutant background, causes abnormal fusion of vulval precursor cells at larval stage L2 (PubMed:24885717).