Predicted to enable DNA binding activity; deubiquitinase activator activity; and ubiquitin binding activity. Predicted to be involved in double-strand break repair via homologous recombination and positive regulation of double-strand break repair via homologous recombination. Predicted to act upstream of or within DNA repair. Predicted to be located in nucleus. Orthologous to human WDR48 (WD repeat domain 48).