Enables oxidized pyrimidine nucleobase lesion DNA N-glycosylase activity and single-strand selective uracil DNA N-glycosylase activity. Involved in base-excision repair. Predicted to be located in cytosol; fibrillar center; and nucleoplasm. Orthologous to human SMUG1 (single-strand-selective monofunctional uracil-DNA glycosylase 1). [provided by Alliance of Genome Resources, Apr 2022]