Enables DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II transcription regulatory region sequence-specific DNA binding activity. Involved in negative regulation of cell growth; negative regulation of transcription, DNA-templated; and positive regulation of transcription, DNA-templated. Acts upstream of or within regulation of transcription by RNA polymerase II. Predicted to be located in cytoplasm and nucleus. Is expressed in several structures, including central nervous system; early conceptus; genitourinary system; hemolymphoid system; and retina. Orthologous to human FOXK1 (forkhead box K1). [provided by Alliance of Genome Resources, Apr 2022]