Predicted to enable DNA-binding transcription activator activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in positive regulation of transcription by RNA polymerase II. Predicted to act upstream of or within cell differentiation. Predicted to be located in nucleus. Is expressed in several structures, including central nervous system; embryo ectoderm; genitourinary system; sensory organ; and skin. Orthologous to human NHLH1 (nescient helix-loop-helix 1). [provided by Alliance of Genome Resources, Apr 2022]