As part of the OOEP-KHDC3 scaffold, recruits BLM and TRIM25 to DNA replication forks, thereby promoting the ubiquitination of BLM by TRIM25, enhancing BLM retainment at replication forks and therefore promoting stalled replication fork restart (PubMed:33115731). Regulates homologous recombination-mediated DNA repair via recruitment of RAD51 to sites of DNA double-strand breaks, and sustainment of PARP1 activity, which in turn modulates downstream ATM activation (PubMed:33115731). Activation of ATM or ATR in response to DNA double-strand breaks may be cell-type specific (By similarity). Its role in DNA double-strand break repair is independent of its role in restarting stalled replication forks (By similarity). As a member of the subcortical maternal complex (SCMC), plays an essential role for zygotes to progress beyond the first embryonic cell divisions via regulation of actin dynamics (By similarity). Required for maintenance of euploidy during cleavage-stage embryogenesis (By similarity). Required for the formation of F-actin cytoplasmic lattices in oocytes which in turn are responsible for symmetric division of zygotes via the regulation of mitotic spindle formation and positioning (By similarity). Ensures proper spindle assembly by regulating the localization of AURKA via RHOA signaling and of PLK1 via a RHOA-independent process (By similarity). Required for the localization of MAD2L1 to kinetochores to enable spindle assembly checkpoint function (By similarity). Promotes neural stem cell neurogenesis and neuronal differentiation in the hippocampus. May regulate normal development of learning, memory and anxiety (By similarity). Capable of binding RNA (By similarity). Component of the subcortical maternal complex (SCMC), at least composed of NLRP5, KHDC3L, OOEP, and TLE6 (By similarity). Within the complex, interacts with NLRP5, KHDC3L and TLE6 (By similarity). The SCMC may facilitate translocation of its components between the nuclear and cytoplasmic compartments (By similarity). Forms a scaffold complex with OOEP/FLOPED, and interacts with BLM and TRIM25 at DNA replication forks (By similarity). Interacts with PARP1; the interaction is increased following the formation of DNA double-strand breaks (By similarity). Interacts with NUMA1 (By similarity). Localized to centrosomes during interphase and mitosis (By similarity). Localizes to sites of DNA double-strand break repair (By similarity). Expressed in fetal neural stem progenitor cells in the brain (at protein levels). Induced by etoposide and hydroxy urea in neural stem cells. Contains 1 atypical KH domain. Belongs to the KHDC1 family.