Yes it can, but it must be run inside conduit. The bare cable itself is not designed to be exposed to the elements. If there is a significant amount to cabling between buildings than you could buy high pair count armor-coated cable (i.e. 300 pairs) designed for outdoor use, but this cable is very expensive. Conduit is cheaper. As for distance you will be limited the TIA/EIA spec for Cat5e, which is 90 meters (300ft.)
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