E3 ubiquitin-protein ligase that mediates ubiquitination of Delta receptors, which act as ligands of Notch proteins. Positively regulates the Delta-mediated Notch signaling by ubiquitinating the intracellular domain of Delta, leading to endocytosis of Delta receptors. Probably mediates ubiquitination and subsequent proteasomal degradation of DAPK1, thereby antagonizing anti-apoptotic effects of DAPK1 to promote TNF-induced apoptosis By similarity. Mediates 'Lys-63'-linked polyubiquitination of TBK1, which probably participates in kinase activation.
[1] "Mind bomb is a ubiquitin ligase that is essential for efficient activation of Notch signaling by Delta."Itoh M., Kim C.-H., Palardy G., Oda T., Jiang Y.-J., Maust D., Yeo S.-Y., Lorick K., Wright G.J., Ariza-McNaughton L., Weissman A.M., Lewis J., Ch