Xylanase exhibiting endo- and exo-xylanase activity (PubMed:31110561). Shows the highest activity toward beechwood glucuronoxylan, which consists of a beta-1,4-linked xylose backbone decorated with the methylated form of D-glucuronic acid (MeGlcA) attached directly to the main chain at xylose C2 (PubMed:31110561). Acts also against wheat arabinoxylan, a xylan without MeGlcA substituents along the main chain, but the xylanase activity is about two orders of magnitude lower than that achieved in the case of beechwood xylan (PubMed:31110561). Shows no activity against carob galactomannan, konjac glucomannan, or barley beta-glucan (PubMed:31110561). The recombinant xylanase also exhibits an exo-activity by releasing processively disaccharide units from the non-reducing end of linear and decorated xylooligosaccharides (XOS) (PubMed:31110561). Activity is enhanced by 10 mM Co(2+), Cu 2(2+) and Mn(2+) to levels as high as 44% (PubMed:31110561). Partial inhibition of activity from 5 to 15% is observed in the presence of the following compouinds at a centration of 10 mM (from higher inhibition to lower): EDTA > Mg(2+) > urea, Zn(2+) > Fe(3+) (PubMed:31110561). Optimum pH is 4.0. Optimum temperature is 50 degrees Celsius. The recombinant xylanase could be used for the production of disaccharide units and uronic xylooligosaccharides from glucuronoxylan, which in turn would be utilized as prebiotics carrying manifold health benefits. Belongs to the glycosyl hydrolase 30 family.