Predicted to enable several functions, including ATPase inhibitor activity; orotate phosphoribosyltransferase activity; and orotidine-5'-phosphate decarboxylase activity. Predicted to be involved in 'de novo' UMP biosynthetic process and 'de novo' pyrimidine nucleobase biosynthetic process. Predicted to be located in mitochondrion. Is an ortholog of C. elegans
umps-1. In C. elegans,
umps-1 is involved in several processes, including determination of adult lifespan; pyrimidine-containing compound biosynthetic process; and response to radiation.