Yes you can lose quite a bit of belly fat by walking everyday for 45 minutes to 60 minutes per day.
I started walking 45 minutes per day or walked wherever I could and after 6 months I noticed a lot of my belly fat was going away.
After a year of walking everyday or at least almost everyday my belly fat was nearly completely gone and after 2 years I had lost all my belly fat.
I continue to walk almost daily whenever I can and I've kept off my weight and belly fat and I have more energy as a result as well.
Walking 45 minutes mobilizes you body to dip into fat reserves and burn stored fat and belly fat.