Probable transcription factor (PubMed:17011494). Promotes normal hermaphrodite (XX) development, in concert with histone deacetylase hda-1 and nasp-1, perhaps as components of a complex (PubMed:17011494). May cooperate with transcription factor tra-1 to repress male-specific genes in hermaphrodites (PubMed:17011494). Synthetic multivulva (synMuv) class B protein, required to repress the induction of vulval development by let-60 Ras signaling (PubMed:17011494). Interacts with histone deacetylase hda-1 (PubMed:17011494). May interact with nasp-1 (PubMed:17011494). Expressed widely from the 28-cell stage of embryogenesis and throughout development and adult life. Belongs to the krueppel C2H2-type zinc-finger protein family.