Transcriptional corepressor which facilitates transcriptional repression via its association with DNA-binding transcription factors and recruitment of other corepressors and histone-modifying enzymes. Can repress the expression of MMP7 in a ZBTB33-dependent manner. Can repress transactivation mediated by TCF12 (By similarity). Acts as a negative regulator of adipogenesis (PubMed:23527555). Homotetramer (By similarity). Heterotetramer with CBFA2T2 and CBFA2T3 (By similarity). Interacts with TCF12, SIN3A, HDAC1, HDAC2, HDAC3, NCOR1 and NCOR2. Interacts with ATN1 (via its N-terminus); the interaction enhances the transcriptional repression (By similarity). Colocalizes with ATN1 in discrete nuclear dots. The TAFH domain mediates interaction with transcription regulators. Nervy homology region 2 (NHR2) mediates homo- and possibly heterotypic oligomerization by forming a four-helix bundle tetrameric structure. Belongs to the CBFA2T family.