Casitas B lineage lymphoma proto oncogene, CBL2, E3 ubiquitin protein ligase CBL, Oncogene CBL2, Proto oncogene c CBL, RING finger protein 55, RNF55, Signal transduction protein CBL.
Participates in signal transduction in hematopoietic cells. Adapter protein that functions as a negative regulator of many signaling pathways that start from receptors at the cell surface. Acts as an E3 ubiquitin-protein ligase, which accepts ubiquitin from specific E2 ubiquitin-conjugating enzymes, and then transfers it to substrates promoting their degradation by the proteasome.