Cells synthesize a sizable number of protein-based macromolecules. Some are used internally. Others are secreted for use by other cells (exocytosis).
The Golgi body is a stack of membranes that works in concert with an ER to package proteins before shipping the proteins off to their intended destination. Enzymes tune up newly synthesized proteins in the Golgi to improve their job performance potential.
In animal cells, the Golgi mysteriously breaks up and disappears at the onset of cell division (mitosis), reappearing during the telophase of mitosis: when 2 daughter nuclei form in the cell. In contrast, Golgi stacks stay intact through the cell cycle in yeast and plant cells.