Catalyzes the hydrolysis of ferric enterobactin (Fe-Ent). Is responsible for the release of iron from ferric enterobactin. Fe(III)-enterobactin + H(+) + 3 H2O = Fe(III)-[N-(2,3-dihydroxybenzoyl)-L-serine] + 2 N-(2,3-dihydroxybenzoyl)-L-serine Fe(III)-enterobactin + H2O = Fe(III)-[N-(2,3-dihydroxybenzoyl)-L-serine]3 + H(+) Fe(III)-[N-(2,3-dihydroxybenzoyl)-L-serine]3 + H(+) + H2O = Fe(III)-[N-(2,3-dihydroxybenzoyl)-L-serine]2 + N-(2,3-dihydroxybenzoyl)-L-serine Fe(III)-[N-(2,3-dihydroxybenzoyl)-L-serine]2 + H(+) + H2O = Fe(III)-[N-(2,3-dihydroxybenzoyl)-L-serine] + N-(2,3-dihydroxybenzoyl)-L-serine Belongs to the Fes family. Truncated N-terminus.