Predicted to enable K48-linked polyubiquitin modification-dependent protein binding activity; Lys48-specific deubiquitinase activity; and cysteine-type carboxypeptidase activity. Predicted to be involved in protein K48-linked deubiquitination. Predicted to act upstream of or within proteolysis. Predicted to be located in nuclear body. Orthologous to human MINDY1 (MINDY lysine 48 deubiquitinase 1). [provided by Alliance of Genome Resources, Apr 2022]