Enables DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Involved in several processes, including cartilage development; osteoblast development; and transcription by RNA polymerase II. Predicted to be located in cytosol and nuclear speck. Predicted to be part of transcription regulator complex. Predicted to be active in nucleus. Biomarker of hypertension. Human ortholog(s) of this gene implicated in craniosynostosis and parietal foramina. Orthologous to human MSX2 (msh homeobox 2). [provided by Alliance of Genome Resources, Apr 2022]