This family of glycoside hydrolases 71 (following the CAZY nomenclature) function as alpha-1,3-glucanases (mutanases, EC 3.2.1.59). They appear to have an endo-hydrolytic mode of enzymatic activity and bacterial members are investigated as candidates for the development of dental caries treatments.The member from fission yeast, endo-alpha-1,3-glucanase Agn1p, plays a vital role in daughter cell separation, while Agn2p has been associated with endolysis of the ascus wall.