Got it - Zoom client does not have auto-framing functionality built in, but your camera does. This feature will take place before the camera is received by Zoom, so you'll need to activate framing on the camera. The manufacturer does not have a manual publicly posted online, but the device does ship with a manual - I would advise consulting this manual for instructions regarding the auto-framing function.
I would also assume that auto-framing could be toggled on/off via the included remote, management software from the manufacturer, or hard buttons on the device. Again, please consult the user manual to be sure.