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 animal organ development; neuron development; and regulation of transcription by RNA polymerase II. Predicted to be located in XY body. Orthologous to human PBX4 (PBX homeobox 4). [provided by Alliance of Genome Resources, Apr 2022]