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) Induced by galacturonate, repressed by glucose. Member of the exu locus which is required for galacturonate utilization. Belongs to the major facilitator superfamily. Phthalate permease family.