Predicted to enable DNA binding activity and NF-kappaB binding activity. Predicted to contribute to RNA polymerase II general transcription initiation factor activity. Predicted to be involved in positive regulation of stem cell proliferation and transcription initiation from RNA polymerase II promoter. Predicted to be located in fibrillar center and nucleoplasm. Predicted to be part of transcription factor TFIID complex. Human ortholog(s) of this gene implicated in spermatogenic failure 13. Orthologous to human TAF4B (TATA-box binding protein associated factor 4b). [provided by Alliance of Genome Resources, Apr 2022]