Simple animation such as moving a cube will be done with code in UE4.
Complex animation will be done with an Armature (although it’s not always that complicated, could just be a weapon firing)
I don’t think UE4 supports Blender-keyed static mesh animation without bones…but don’t quote me.
For what you’re trying, adjusting the object’s location with math and translation is probably the best bet. You CAN make an armature with a root bone, and make an animation for that…import it as a skeletal mesh, create an animation blueprint, etc…but it’s probably not the simplest route.