Homologs of Rru_A0668 from Rhodospirillum rubrum S1H
Cobalamin-5-phosphate synthase CobS (NCBI)
SEED: Cobalamin synthase (EC 2.7.8.26)
KEGG: adenosylcobinamide-GDP ribazoletransferase
89 hits from BLASTp (E < 0.01)
Or try PaperBLAST, fast.genomics, the ENIGMA genome browser, or the comparative fitness browser