In a large bowl, combine all the ingredients for the filling, except the butter. Set berry filling aside.
Place the rack in the center of the oven preheated to 400°F.
On a floured surface, roll out the dough and form a 13" diameter circle. Place on a baking sheet lined with parchment paper.
Place the berry mixture in the center of the dough, leaving a 3" border. Sprinkle berry filling with pieces of vegan butter.
Fold the dough border over the berry mixture.
Brush the milk over the edges of the pie. Sprinkle with raw sugar.
Bake pie for 15 minutes at 400°F. Then bake about 35 more minutes at 350°F or until the filling is bubbling and the crust is golden brown. Rotate the pie a few times during cooking.