The function of DMC1 (DNA meiotic recombinase 1, Ensembl gene identifier ENSG00000100206) is as follows. Homologous DNA recombinase that catalyzes strand exchange during meiotic recombination (PubMed:15164066, PubMed:21307306, PubMed:26976601). Specifically required for meiotic recombination, facilitating the search and repair of DNA using the homolog rather than the sister chromatid, and can tolerate mismatches in heteroduplex DNA, unlike the higher-fidelity RAD51 (PubMed:15164066, PubMed:26976601). {ECO:0000269|PubMed:15164066, ECO:0000269|PubMed:21307306, ECO:0000269|PubMed:26976601}.