Enables thiol-dependent deubiquitinase. Involved in several processes, including Golgi reassembly; endoplasmic reticulum membrane fusion; and protein ubiquitination. Predicted to be located in cytoplasm and nucleus. Predicted to be active in synapse. Orthologous to human VCPIP1 (valosin containing protein interacting protein 1). [provided by Alliance of Genome Resources, Apr 2022]