UBX domain-containing protein 2B (Ubxn2b)

Adapter protein required for Golgi and endoplasmic reticulum biogenesis. Involved in Golgi and endoplasmic reticulum care during interphase and in their reassembly at the end of mitosis.

The complex formed with VCP has membrane fusion activity; membrane fusion activity demands USO1-GOLGA2 tethering and BET1L. VCPIP1 is also required, but not its deubiquitinating activity.