glycosyl hydrolase family 5 protein / cellulase family protein. Identical to Mannan endo-1,4-beta-mannosidase 2 precursor (MAN2) [Arabidopsis Thaliana] (GB:Q7Y223;GB:Q9SKU9); similar to glycosyl hydrolase family 5 protein / cellulase family protein [Arabidopsis thaliana] (TAIR:AT4G28320.1); similar to unknown [Populus trichocarpa] (GB:ABK95966.1); contains InterPro domain Glycoside hydrolase, family 5; (InterPro:IPR001547); contains InterPro domain Glycoside hydrolase, catalytic core; (InterPro:IPR013781)