Catalyzes the hydrolysis of complex carboxylic polyesters found in the cell wall of plants (PubMed:29068240). May degrade cutin, a macromolecule that forms the structure of the plant cuticle (PubMed:29068240). May also degrade suberin, a specialized macromolecule found in the cell wall of various plant tissues (PubMed:29068240). Allows pathogenic fungi to penetrate through the cuticular barrier into the host plant during the initial stage of fungal infection (By similarity). Involved in pathogenesis (PubMed:29068240). cutin + H2O = cutin monomers. Induced during infection of cotton. The 2 disulfide bonds play a critical role in holding the catalytic residues in juxta-position; reduction of the disulfide bridges results in the complete inactivation of the enzyme. Normal cell population growth and colony morphology. Belongs to the cutinase family.