Acts as a transcriptional corepressor in a IRF2-dependent manner; this repression is not mediated by histone deacetylase activities . Represses the NFAT1-dependent transactivation of NFAT-responsive promoters . Acts as a coactivator of VEGFA expression in cardiac and skeletal muscles . Plays a role in immature B-cell differentiation .
Subcellular locations: Cytoplasm, Nucleus