Homologs of Rru_A0631 from Rhodospirillum rubrum S1H
Putative diguanylate cyclase (GGDEF domain) with PAS/PAC sensor domain (NCBI)
SEED: Sensory box/GGDEF family protein
Top 100 hits from BLASTp (E < 0.01)
Or try PaperBLAST, fast.genomics, the ENIGMA genome browser, or the comparative fitness browser