Asparagine-specific endopeptidase that may be involved in processing of proteins targeted to vacuoles that accumulate during ethylene-regulated processes such as flower opening and flavedo degreening. High levels are seen in the flowers, a lower level expression is seen in the leaves, while very low levels are seen in the stems and roots. The levels are low in green fruits but accumulate with color change occurring during ripening, reaching maximum levels in fully colored fruit. The levels increase during flower development and show highest levels in flowers at anthesis. Belongs to the peptidase C13 family.