Transport of aldohexuronates such as D-glucuronate and D-galacturonate. aldehydo-D-glucuronate(in) + H(+)(in) = aldehydo-D-glucuronate(out) + H(+)(out) aldehydo-D-galacturonate(out) + H(+)(out) = aldehydo-D-galacturonate(in) + H(+)(in) Belongs to the major facilitator superfamily. Phthalate permease family. Extended N-terminus. Extended N-terminus.