[biological_process] cerebellar granule cell differentiation <sep> chemical synaptic transmission <sep> establishment of localization in cell <sep> heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules <sep> maintenance of synapse structure <sep> negative regulation of excitatory postsynaptic potential <sep> negative regulation of inhibitory synapse assembly <sep> nervous system development <sep> positive regulation of long-term synaptic depression <sep> positive regulation of synapse assembly <sep> protein secretion <sep> regulation of postsynaptic density assembly <sep> regulation of presynapse assembly <sep> synapse assembly <sep> synapse organization