Preheat oven to 375°. Divide cheese in half. Cut half into 1/4-in. cubes; shred remaining cheese. In a large bowl, combine next 5 ingredients. Stir beer into dry ingredients just until moistened. Fold in cubed and shredded cheese.
Transfer to a greased 8x4-in. loaf pan. Drizzle with butter. Bake until a toothpick inserted in centre comes out clean, 50-60 minutes. Cool 10 minutes before removing from pan to a wire rack.