本酶催化的反应为Eliminative Cleavage Of (1->4)-beta-D-Glucuronans To Give Oligosaccharides With 4-Deoxy-beta-D-Gluc-4-Enuronosyl Groups At Their Non-Reducing Ends. Complete Degradation Of Glucuronans Results In The Formation Of Tetrasaccharides.系统名称为(1->4)-beta-D-Glucuronan Lyase。