Team Queues are available in the iOS app if you are on a GQueues for BUSINESS plan. All you need to do is open the side panel and select the Team Queue you'd like to view.

Just like in the desktop version, you'll only be able to perform actions in teams based on the permissions set by your team member role.

Performing those actions works the same in Team Queues as it does for My Queues.

It is not currently possible to create a team, view team members, leave a team, or access team settings from the mobile app. Those actions should be taken on the web version of your account.