Homologs of nrdG from Erwinia tracheiphila SCR3
nrdG: anaerobic ribonucleoside-triphosphate reductase-activating protein
SEED: Ribonucleotide reductase of class III (anaerobic), activating protein (EC 1.97.1.4)
KEGG: anaerobic ribonucleoside-triphosphate reductase activating protein 
88 hits from BLASTp (E < 0.01)
Or try PaperBLAST, fast.genomics, the ENIGMA genome browser, or the comparative fitness browser