You can however export a video clip as a sequence of JPG images and use an online converter to create animated GIF's, there are several on the Internet - some are free, however look out for the terms and conditions, they may reserve the right to keep a copy of the GIF for commercial use.
If you have Photoshop then you can use this to create an animated GIF from the sequence of images (you may need to convert them to png filesif you want a transparent background.