VCP/p97-binding protein required for ciliogenesis (PubMed:26389662). Acts as a tethering factor that facilitates recruitment of VCP/p97 to the intraflagellar transport complex B (IFT-B) in cilia (PubMed:26389662). UBX domain-containing proteins act as tethering factors for VCP/p97 and may specify substrate specificity of VCP/p97 (PubMed:26389662). Interacts with CLUAP1; the interaction is direct and mediates interaction with the intraflagellar transport complex B (IFT-B) (PubMed:26389662). Interacts with VCP; the interaction is direct (PubMed:26389662). Recruited to cilia in a VCP-dependent manner. Belongs to the UBXN10 family.