Preheat oven to 350 degrees. Without sifting, combine flour, salt, cinnamon, nutmeg, ginger and baking powder in a large mixing bowl. Grind flax in a blender and add juice. Blend. Add oil, vanilla, honey, sugar, nutritional yeast, rice syrup, and maples syrup to the blender. Blend briefly. Add wet ingredients to dry ingredients and stir them together. Pour cake batter into a lightly oiled cake pan. Bake for 40 minutes.