Predicted to enable microtubule binding activity and polyubiquitin modification-dependent protein binding activity. Predicted to be involved in several processes, including mitotic G2 DNA damage checkpoint signaling; mitotic spindle assembly; and protein K63-linked deubiquitination. Predicted to act upstream of or within DNA repair and chromatin organization. Predicted to be located in nuclear body. Predicted to be part of BRCA1-A complex. Predicted to be active in nucleus. Orthologous to human ABRAXAS1 (abraxas 1, BRCA1 A complex subunit). [provided by Alliance of Genome Resources, Apr 2022]