The function of Ensembl gene identifier ENSG00000155846 (PPARGC1B, PPARG coactivator 1 beta) is as follows. Plays a role of stimulator of transcription factors and nuclear receptors activities. Activates transcriptional activity of estrogen receptor alpha, nuclear respiratory factor 1 (NRF1) and glucocorticoid receptor in the presence of glucocorticoids. May play a role in constitutive non-adrenergic-mediated mitochondrial biogenesis as suggested by increased basal oxygen consumption and mitochondrial number when overexpressed. May be involved in fat oxidation and non- oxidative glucose metabolism and in the regulation of energy expenditure. Induces the expression of PERM1 in the skeletal muscle in an ESRRA-dependent manner. {ECO:0000269|PubMed:11854298, ECO:0000269|PubMed:12678921, ECO:0000269|PubMed:15546003, ECO:0000269|PubMed:23836911}.