Functions as a transactivator of PPARG and ESR1. Functions in adipogenesis through PPARG activation. Interacts with ESR1 and RXRA. Interacts with PPARG; in a ligand-independent manner. Ubiquitously expressed (at protein level). Expressed throughout the embryonic developmental stages from 5 dpc to 19 dpc (at protein level). Up-regulated in differentiating adipocytes (at protein level). Belongs to the constitutive coactivator of PPAR-gamma family.