Predicted to enable DNA-binding transcription repressor activity, RNA polymerase II-specific; RNA polymerase II cis-regulatory region sequence-specific DNA binding activity; and identical protein binding activity. Predicted to be involved in negative regulation of transcription by RNA polymerase II. Predicted to act upstream of or within several processes, including embryonic foregut morphogenesis; lung secretory cell differentiation; and negative regulation of lung goblet cell differentiation. Predicted to be active in nucleus. Orthologous to human FOXP4 (forkhead box P4). [provided by Alliance of Genome Resources, Apr 2022]