Involved in degradation of plant cell walls. Hydrolyzes the feruloyl-arabinose ester bond in arabinoxylans, and the feruloyl-galactose ester bond in pectin. Binds to cellulose. feruloyl-polysaccharide + H2O = ferulate + polysaccharide. Inhibited by the specific serine esterase inhibitor diisopropylfluorophosphate. Optimum pH is 5.0. Optimum temperature is 55-60 degrees Celsius. By xylose and arabinose, probably via the xylanolytic transcriptional activator XlnR. By ferulic acid, vanillic acid and other aromatic residues with the following substituants on the aromatic ring: a methoxy group at C-3, a hydroxy group at C-4 and an unsubstituted C-5. Repressed by simple sugars, probably via the carbon catabolite repressor protein CreA. Glycosylated. Belongs to the AB hydrolase superfamily. FaeA family.