EDA5 (embryo sac development arrest 5); catalytic. similar to exostosin family protein [Arabidopsis thaliana] (TAIR:AT3G45400.1); similar to secondary cell wall-related glycosyltransferase family 47 [Populus tremula x Populus tremuloides] (GB:AAX33321.1); contains InterPro domain Exostosin-like; (InterPro:IPR004263)