The function of TRIM45 (tripartite motif containing 45, ENSG00000134253) is as follows. E3 ubiquitin-protein ligase that plays a role in the regulation of inflammatory response (PubMed:36681779). Mechanistically, mediates the 'Lys-48'-linked polyubiquitination of TAB2, a regulatory protein of the kinase TAK1, leading to its degradation via the proteasomal pathway and inhibition of the TLR-mediated inflammatory immune response (PubMed:36681779). May act as a transcriptional repressor in mitogen-activated protein kinase signaling pathway. .