intramolecular aminotransferase activity D-ornithine 4,5-aminomutase activity https://github.com/geneontology/go-ontology/issues/30193 D-alpha-ornithine 5,4-aminomutase activity D-ornithine aminomutase activity EC:5.4.3.5 GO:0047831 RHEA:14893 MetaCyc:ORNMUTST-RXN Catalysis of the reaction: D-ornithine = (2R,4S)-2,4-diaminopentanoate. KEGG_REACTION:R02461 molecular_function