Minimap

The minimap is a UI element that represents the Battleground's map on a smaller scale. It displays in real time the location and status of structures, heroes, some abilities (like Ragnaros' Lave Wave), minions, catapults, monsters and objectives. The minimap is subject to team vision, with unseen areas covered by the fog of war.

Right clicking anywhere on the minimap will command the hero to move to that location. However, this option can be turned off to prevent missclicks. ALT + left-clicking an enemy Hero portrait will ping that Hero's location on the Minimap if they are within allied vision. If that enemy is outside of allied vision, a chat message will inform allies that the Hero is missing.

Minimap Awareness
Minimap Awareness in Heroes of the Storm refers to the degree to which a player is aware of what's going on throughout the battlefield through information gleaned from the minimap, which you can find in the lower-right corner of the screen. In addition to providing you the location of your own teammates, the minimap will reveal opponents' positions while they are visible to your team. It will also indicate when objectives and Mercenary camps are available, and the status of all fortifications.

By regularly keeping an eye on your minimap, you are in a much better position to make informed decisions about where you should be focusing your efforts. Are there three enemy Heroes visible on the other side of the map? Maybe it's time to team up and take down that half-health enemy fort.