Specifically required for generation of multiciliated cells, possibly by promoting a cell cycle state compatible with centriole amplification and maturation. Acts downstream of MCIDAS to promote mother centriole amplification and maturation in preparation for apical docking (By similarity). May be involved in apoptosis in lymphoid cells; however, this result requires additional evidences in vivo. May be involved in oocyte meiotic resumption in oocytes. Localizes to the apical part of cytoplasm. Present in respiratory cells (at protein level). Expressed in multiciliated tissue in brain and fallopian tube (at protein level) (PubMed:26777464). Highly expressed in oocytes. Expressed in ependymal cells of the embryonic brain, but almost absent in the adult brain. Belongs to the cyclin family.