Interferon-stimulated protein that plays an important role in innate immune response against a wide variety of viruses. Inhibits flavivirus replication by preventing the formation of virus-induced endoplasmic reticulum membrane invaginations, which are double-membrane vesicles that flaviviruses use for their replication. Plays a role in apoptosis, negatively regulating the intrinsinc apoptotic signaling pathway and TNFSF10-induced apoptosis. However, it has also been shown to have a pro-apoptotic activity. Modulates innate immune response mediated by RIGI by preventing its activation.
Subcellular locations: Mitochondrion inner membrane