Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in entrainment of circadian clock by photoperiod; neuron differentiation; and regulation of transcription by RNA polymerase II. Predicted to act upstream of or within several processes, including entrainment of circadian clock; neural retina development; and optic nerve development. Predicted to be active in nucleus. Human ortholog(s) of this gene implicated in persistent hyperplastic primary vitreous. Orthologous to human ATOH7 (atonal bHLH transcription factor 7). [provided by Alliance of Genome Resources, Apr 2022]