BAG family molecular chaperone regulator 3; Co-chaperone for HSP70 and HSC70 chaperone proteins. Acts as a nucleotide-exchange factor (NEF) promoting the release of ADP from the HSP70 and HSC70 proteins thereby triggering client/substrate protein release. Nucleotide release is mediated via its binding to the nucleotide-binding domain (NBD) of HSPA8/HSC70 where as the substrate release is mediated via its binding to the substrate-binding domain (SBD) of HSPA8/HSC70 . Has anti- apoptotic activity . Plays a role in the HSF1 nucleocytoplasmic transport . ECO:0000269|PubMed:26159920, ECO:0000269|PubMed:27474739,
Synonyms: BAG3, BAG3p, hBAG3, C9JFK9, O95817 ...