Predicted to enable microtubule binding activity and polyubiquitin modification-dependent protein binding activity. Involved in negative regulation of apoptotic process; protein K63-linked deubiquitination; and response to ischemia. Acts upstream of or within cellular response to freezing. Located in cytoplasm and nucleus. Orthologous to human ABRAXAS2 (abraxas 2, BRISC complex subunit). [provided by Alliance of Genome Resources, Apr 2022]