Homologs of MPMX19_04811 from Azospirillum sp. SherDot2
hypothetical protein
SEED: Adenylate cyclase (EC 4.6.1.1)
KEGG: adenylate cyclase 
Top 100 hits from BLASTp (E < 0.01)
Or try PaperBLAST, fast.genomics, the ENIGMA genome browser, or the comparative fitness browser