Xylanase domain releases more xylo-oligosaccharides and GH10 domain more xylose. Endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans. Glycan degradation; xylan degradation. In the N-terminal section; belongs to the glycosyl hydrolase 11 (cellulase G) family. In the C-terminal section; belongs to the glycosyl hydrolase 10 (cellulase F) family.