Enables centromeric DNA binding activity and chromatin binding activity. Acts upstream of or within meiotic nuclear division; mismatch repair; and protein localization. Located in chiasma; male germ cell nucleus; and synaptonemal complex. Part of mismatch repair complex. Is expressed in brain; early conceptus; ileum; reproductive system; and trigeminal nerve. Human ortholog(s) of this gene implicated in Lynch syndrome; colorectal cancer; endometrial cancer; and hereditary nonpolyposis colorectal cancer type 7. Orthologous to human MLH3 (mutL homolog 3). [provided by Alliance of Genome Resources, Apr 2022]