Acts as a corepressor of recombining binding protein suppressor hairless (RBPJ) and inhibits Notch signaling in neural stem cells, thereby opposing their self-renewal and promoting neurogenesis (PubMed:23571214, PubMed:25561495). Interacts (via BEN domain) with RBPJ. Expressed in differentiating neurons in embryonic neocortex (at protein level).