Involved in the degradation of the pyridine ring of trigonelline (TG; N-methylnicotinate) into succinate and methylamine as carbon and nitrogen sources, respectively. Catalyzes the hydrolysis of (E)-2-((N-methylformamido)methylene)succinate (MFMS) into formic acid, succinate semialdehyde (SSA), methylamine and carbon dioxide. (E)-2-((N-methylformamido) methylene)succinate + H(+) + 2 H2O = CO2 + formate + methylamine + succinate semialdehyde kcat is 112.3 sec(-1) for (E)-2-((N-methylformamido)methylene)succinate (MFMS) as substrate. Monomer. Belongs to the AB hydrolase superfamily.