Predicted to enable ATP hydrolysis activity and single base insertion or deletion binding activity. Predicted to contribute to MutSalpha complex binding activity and single-stranded DNA binding activity. Involved in response to xenobiotic stimulus. Predicted to be located in several cellular components, including cytoplasmic ribonucleoprotein granule; cytosol; and nucleoplasm. Predicted to be part of MutLalpha complex. Human ortholog(s) of this gene implicated in Lynch syndrome; hereditary nonpolyposis colorectal cancer type 4; mismatch repair cancer syndrome; ovarian cancer; and urinary bladder cancer. Orthologous to human PMS2 (PMS1 homolog 2, mismatch repair system component). [provided by Alliance of Genome Resources, Apr 2022]