CCR4-NOT transcription complex subunit 4 (CNOT4)

Has E3 ubiquitin ligase activity, promoting ubiquitination and degradation of target proteins (PubMed:11823428, PubMed:22159038, PubMed:26575292). Involved in activation of this JAK/STAT pathway (PubMed:11823428, PubMed:22159038).

Catalyzes ubiquitination of methylated RBM15 (PubMed:26575292). .