Capable of hydrolyzing lactones and a number of aromatic carboxylic acid esters. a phenyl acetate + H2O = a phenol + acetate + H(+) an N-acyl-L-homoserine lactone + H2O = an N-acyl-L-homoserine + H(+) Binds 2 calcium ions per subunit. Homotrimer. Glycosylated. The signal sequence is not cleaved. Belongs to the paraoxonase family.