Enables sequence-specific DNA binding activity. Predicted to be involved in animal organ development; neuron development; and regulation of transcription by RNA polymerase II. Located in XY body. Is expressed in several structures, including early conceptus; eye; gonad; heart; and urinary system. Orthologous to human PBX4 (PBX homeobox 4). [provided by Alliance of Genome Resources, Apr 2022]