Probable transcription factor, involved in regulation of dopamine neuron lineage specification (PubMed:29301976). May play a role in maintaining robustness of the Wnt/beta-catenin asymmetry pathway (PubMed:29301976). Expressed in early larval stages, in head hypodermal cells, head muscle cells, neurons, and ectodermal blast cells along the body (all P and all V cells) and in the tail (PubMed:29301976). Starting in the larval L2 stage, also expressed in P cell-derived ventral cord motor neurons (PubMed:29301976). Third 'degenerate' zinc-finger domain essential for function.