Enables several functions, including DNA-binding transcription activator activity, RNA polymerase II-specific; RNA polymerase II cis-regulatory region sequence-specific DNA binding activity; and SMAD binding activity. Involved in positive regulation of transcription by RNA polymerase II and response to insulin. Located in nucleus. Human ortholog(s) of this gene implicated in type 2 diabetes mellitus. Orthologous to human FOXA2 (forkhead box A2). [provided by Alliance of Genome Resources, Apr 2022]