Predicted to enable DNA-binding transcription activator activity, RNA polymerase II-specific; DNA-binding transcription factor binding activity; and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Involved in transdifferentiation. Located in nucleus. Used to study myocardial infarction. Human ortholog(s) of this gene implicated in Holt-Oram syndrome. Orthologous to human TBX5 (T-box transcription factor 5). [provided by Alliance of Genome Resources, Apr 2022]