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 anatomical structure development and regulation of transcription by RNA polymerase II. Predicted to act upstream of or within several processes, including animal organ development; positive regulation of transcription by RNA polymerase II; and somitogenesis. Predicted to be located in nucleus. Human ortholog(s) of this gene implicated in branchiootorenal syndrome. Orthologous to human PAX1 (paired box 1). [provided by Alliance of Genome Resources, Apr 2022]