(R)-2-hydroxyglutarate dehydrogenase activity (R)-2-hydroxyglutarate-pyruvate transhydrogenase activity https://github.com/geneontology/go-ontology/issues/30707 D-2HG-pyruvate transhydrogenase activity MetaCyc:RXN-18432 (D)-2-hydroxyglutarate-pyruvate transhydrogenase activity Catalysis of the reaction: (R)-2-hydroxyglutarate + pyruvate = (R)-lactate + 2-oxoglutarate. molecular_function R-2-hydroxyglutarate alpha-pyruvate transhydrogenase activity GO:0099615 EC:1.1.99.40 RHEA:51608