Promotes CCP110 ubiquitination and proteasome-dependent degradation. By counteracting accumulation of CP110, maintains normal centriolar homeostasis and preventing formation of ectopic microtubular organizing centers (By similarity). Interacts with CCP110; this interaction propmotes CCP110 ubiquitination and degradation via the proteasome pathway. Via its interaction with CCP110, may indirectly interact with CEP97. Interacts with the E3 ubiquitin-protein ligase HERC2 and UBE3A. May interact with MAPK6 and hence mediate MAPK6 interaction with UBE3A. Interaction with UBE3A may be indirect and mediated by HERC2 (By similarity). Ubiquitinated; undergoes HERC2-dependent 'Lys-48' ubiquitination. This ubiquitination leads to proteasomal degradation (By similarity).