Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in axonogenesis; neuron fate specification; and regulation of transcription by RNA polymerase II. Predicted to act upstream of or within negative regulation of neuron differentiation and neuron differentiation. Predicted to be active in nucleus. Orthologous to human ISL2 (ISL LIM homeobox 2). [provided by Alliance of Genome Resources, Apr 2022]