Predicted to enable 3'-tyrosyl-DNA phosphodiesterase activity; double-stranded DNA binding activity; and single-stranded DNA binding activity. Acts upstream of or within single strand break repair. Located in nucleus. Is expressed in ovary and testis. Used to study spinocerebellar ataxia type 1 with axonal neuropathy. Human ortholog(s) of this gene implicated in spinocerebellar ataxia type 1 with axonal neuropathy. Orthologous to human TDP1 (tyrosyl-DNA phosphodiesterase 1). [provided by Alliance of Genome Resources, Apr 2022]