exostosin family protein. similar to ARAD1 (ARABINAN DEFICIENT 1), catalytic/ transferase, transferring glycosyl groups [Arabidopsis thaliana] (TAIR:AT2G35100.1); similar to OSJNBa0043A12.35 [Oryza sativa (japonica cultivar-group)] (GB:CAE02830.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO64632.1); contains InterPro domain Exostosin-like; (InterPro:IPR004263)