There's any number of ways, but probably the easiest is to try BLASTing known cellulase genes against the Aneurinibacillus genome sequences available. Best of luck!

Yes I agree with Anthony. You use blast to find funcional gene. Add acession number and blast

Yours is:  JYBO00000000

 https://www.ncbi.nlm.nih.gov/nuccore/JYBO00000000

If you are interested in cellulases, you'll likely find useful the CAZy database. Particularly, the CAZYmes Analysis Toolkit (CAT) will allow you to annotate cellulase and other glycoside degrading enzymes. Links are attached.

http://mothra.ornl.gov/cgi-bin/cat/cat.cgi

http://www.cazy.org/Welcome-to-the-Carbohydrate-Active.html

Thank you all to give me such a good suggestions and ideas. I am going through it. Thanks.