Enables DNA binding activity and DNA-binding transcription factor activity, RNA polymerase II-specific. Acts upstream of or within negative regulation of transcription by RNA polymerase II. Predicted to be located in nucleus. Human ortholog(s) of this gene implicated in Bamforth-Lazarus syndrome and thyroid gland papillary carcinoma. Orthologous to human FOXE1 (forkhead box E1). [provided by Alliance of Genome Resources, Apr 2022]