The function of TRAF7 (TNF receptor associated factor 7, ENSG00000131653) is as follows. E3 ubiquitin and SUMO-protein ligase that plays a role in different biological processes such as innate immunity, inflammation or apoptosis (PubMed:15001576, PubMed:37086853). Potentiates MAP3K3- mediated activation of JUN/AP1 and DDIT3 transcriptional regulators (PubMed:14743216). Negatively regulates MYB transcriptional activity by sequestering it to the cytosol via SUMOylation (By similarity). Plays a role in the phosphorylation of MAPK1 and/or MAPK3, probably via its interaction with MAP3K3. Negatively regulates RLR-mediated innate immunity by promoting 'Lys-48'-linked ubiquitination of TBK1 through its RING domain to inhibit the cellular antiviral response (PubMed:37086853). Promotes 'Lys-29'-linked polyubiquitination of NEMO/IKBKG and RELA leading to targeting these two proteins to lysosomal degradative pathways, reducing the transcriptional activity of NF-kappa-B (PubMed:21518757). {ECO:0000250|UniProtKB:Q922B6, ECO:0000269|PubMed:14743216, ECO:0000269|PubMed:15001576, ECO:0000269|PubMed:21518757, ECO:0000269|PubMed:29961569, ECO:0000269|PubMed:37086853}.