Involved in peroxisomal proliferation. Expressed in seedlings, roots, shoots, leaf sheaths, flag leaf, panicles, spikelets, and endosperm. Expressed in endosperm 21 days after pollination. By abscisic acid, H(2)O(2) and salt stress. Down-regulated by nitrogen or phosphorous deprivation. Belongs to the peroxin-11 family.