Catalysis of the reaction: 3,4-dihydroxypyridine + O-acetyl-L-serine = 3-(3,4-dihydroxypyridinium-1-yl)-L-alanine + acetate.
O3-acetyl-L-serine:3,4-dihydroxypyridine 1-(2-amino-2-carboxyethyl)transferase activity