Highly expressed in kidney, spleen, adrenal gland, ovary and cerebellum and to a lower extent in liver, esophagus, stomach, duodenum, colon, bladder, uterus, lung, pancreas and cerebrum. Not expressed in heart. Encoded by one of the numerous copies of postmeiotic segregation increased 2-like genes scattered in the q11-q22 region of the chromosome 7. Belongs to the DNA mismatch repair MutL/HexB family. Could be the product of a pseudogene. Several conflicts but it is uncertain if it is due to sequencing errors or if this sequence is another copy of this gene.