My name is Winston!

We are looking for a new home for Winston. He is 9 months old, he potties outside (we have a dog door) and is very sweet. His breed is unknown, but we were told he was part Shepherd mix, but the only thing remotely Shepherd is his ears! I believe that he is most likely part cattle dog and something else. He is very active and loves his daily walks. Currently he weights 45 lbs and I don't think he will get much larger. He is very sweet and smart. He is not kennel trained, but sleeps in our kitchen at night on a pallet of blankets. I really hope I can find the right family for him. Current on all shots, neutered and walks well on a leash.