Glucuronoarabinoxylan endo-1,4-beta-xylanase (, feraxan endoxylanase, feraxanase, endoarabinoxylanase, glucuronoxylan xylohydrolase, glucuronoxylanase, glucuronoxylan xylanohydrolase, glucuronoarabinoxylan 1,4-beta-D-xylanohydrolase) is an enzyme with systematic name glucuronoarabinoxylan 4-beta-D-xylanohydrolase. This enzyme catalyses the following chemical reaction
This enzyme has high activity towards feruloylated arabinoxylans.