Probable transcription factor which is required for asymmetric division of vulval blast cells (PubMed:1970421, PubMed:15466489). Involved in olfactory plasticity probably by regulating the expression of transcription factor mbr-1 in RIF neurons (PubMed:19561603). Plays a role in the chemorepulsive response toward ascaroside pheromones mediated by the ADL sensory neurons, probably by regulating E-box motif 5'-CANNTG-3' containing target genes in the ADL neurons (PubMed:29672507). Plays a role in the differentiation of the ADL sensory neurons (PubMed:29672507). Expressed in ADL, AVJL, AIZL, RICL, RIF and AVG neurons.