Enables several functions, including DNA binding activity; DNA-binding transcription activator activity, RNA polymerase II-specific; and RNA polymerase II-specific DNA-binding transcription factor binding activity. Involved in positive regulation of transcription by RNA polymerase II. Acts upstream of or within negative regulation of transcription by RNA polymerase II. Located in nucleus. Orthologous to human FOXA1 (forkhead box A1). [provided by Alliance of Genome Resources, Apr 2022]