6-fructan exohydrolase that can use phlein, levan, neokestose, levanbiose, 6-kestose, and 1-kestose as substrates. Hydrolysis of terminal, non-reducing (2->1)- and (2->6)-linked beta-D-fructofuranose residues in fructans. Associated to the cell wall. A number of isoforms are produced. According to EST sequences. Expressed in seedlings, leaves, flowers, and seeds. Belongs to the glycosyl hydrolase 32 family. Seems to not have any beta-fructofuranosidase activity.