Probable transcription factor (PubMed:26153233). Involved in the terminal differentiation of some neuronal cell types (PubMed:26153233). Dispensable for neuronal fate commitment during embryogenesis (PubMed:26153233). Expressed in several differentiated postmitotic neurons during embryogenesis, but not in neuroblasts (PubMed:26153233). Expressed in larvae and adults in sensory neurons ASK and OLQ, the SMB motor neurons, and the SAA neurons (PubMed:26153233). Expression of immunoglobulin superfamily adhesion molecules rig-5 and lad-2 is abolished in the dorsal and ventral SAA neurons, while expression of the neuropeptide flp-7 gene is lost in the dorsal SAA subtype but remains unaffected in the ventral SAA subtype (PubMed:26153233). No effect on the number of rab-3 expressing neurons on a sox-2 mutant background (PubMed:26153233).