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; negative regulation of histone H3-K9 methylation; and regulation of transcription by RNA polymerase II. Predicted to be located in cytosol; fibrillar center; and nucleoplasm. Human ortholog(s) of this gene implicated in acute lymphoblastic leukemia. Orthologous to human PAX5 (paired box 5). [provided by Alliance of Genome Resources, Apr 2022]