Predicted to enable Lys63-specific deubiquitinase activity; protein domain specific binding activity; and thiol-dependent deubiquitinase. Predicted to be involved in negative regulation of Ras protein signal transduction; negative regulation of phosphatidylinositol 3-kinase signaling; and protein K63-linked deubiquitination. Predicted to act upstream of or within mitotic cytokinesis; negative regulation of neuron apoptotic process; and protein deubiquitination. Predicted to be located in cytosol; nucleoplasm; and plasma membrane. Predicted to be active in cleavage furrow and endosome. Orthologous to human STAMBP (STAM binding protein). [provided by Alliance of Genome Resources, Apr 2022]